63 Works

Developmental life history is associated with variation in rates of climatic niche evolution in a salamander adaptive radiation

Donald Shepard, Samuel Weaver & Kenneth Kozak
Rates of climatic niche evolution vary widely across the tree of life and are strongly associated with rates of diversification and the accumulation of species diversity among clades. However, why the climatic niche evolves more rapidly in some lineages than others remains unclear. Variation in life history traits often plays a key role in determining the environmental conditions under which species can survive, and therefore, could impact the rate at which lineages can expand in...

Data from: Using large-scale tropical dry forest restoration to test successional theory

Leland Werden, Erick Calderón-Morales, Pedro Alvarado J., Derek Nedveck, Jennifer Powers & Milena Gutiérrez L.
Microclimatic conditions change dramatically as forests age and impose strong filters on community assembly during succession. Light availability is the most limiting environmental factor in tropical wet forest succession; by contrast, water availability is predicted to strongly influence tropical dry forest (TDF) successional dynamics. While mechanisms underlying TDF successional trajectories are not well understood, observational studies have demonstrated that TDF communities transition from being dominated by species with conservative traits to species with acquisitive traits,...

Repeated fire shifts carbon and nitrogen cycling by changing plant inputs and soil decomposition across ecosystems

Adam Francis Pellegrini, Sarah Hobbie, Peter Reich, Ari Jumpponen, Jack Brookshire, Anthony Caprio, Corli Coetsee & Robert Jackson
Fires shape the biogeochemistry and functioning of many ecosystems, and fire frequencies are changing across much of the globe. Frequent fires can change soil carbon (C) and nitrogen (N) storage by altering the quantity and chemistry of plant inputs through changes in plant biomass and composition as well as altering decomposition of soil organic matter. How decomposition rates change with shifting inputs remains uncertain because most studies focus on the effects of single fires, where...

Data from: Montane regions shape patterns of diversification in small mammals and reptiles from Madagascar’s moist evergreen forest

Kathryn Everson, Sharon Jansa, Steven Goodman & Link Olson
Aim Madagascar is renowned for its exceptional species diversity and endemism. The island’s mountainous regions are thought to have played a role in lineage and species diversification, but this has yet to be explored across taxonomic groups and a temporal context has not yet been identified. We tested whether montane regions have promoted population divergence in Madagascar’s vertebrate fauna and, if so, whether these divergence events were contemporaneous. Location Moist evergreen forests of Madagascar. Taxa...

Data from: Crop production in the USA is frequently limited by a lack of pollinators

James Reilly, Derek Artz, David Biddinger, Kyle Bobiwash, Natalie Boyle, Claire Brittain, Julia Brokaw, Josh Campbell, Jaret Daniels, Elizabeth Elle, Jamie Ellis, Shelby Fleischer, Jason Gibbs, Robert Gillespie, Knute Gundersen, Larry Gut, George Hoffman, Neelendra Joshi, Ola Lundin, Keith Mason, Carley McGrady, Steve Peterson, Theresa Pitts-Singer, Sujaya Rao, Nikki Rothwell … & Rachael Winfree
Most of the world’s crops depend on pollinators, so declines in both managed and wild bees raise concerns about food security. However, the degree to which insect pollination is actually limiting current crop production is poorly understood, as is the role of wild species (as opposed to managed honey bees) in pollinating crops, particularly in intensive production areas. We established a nation-wide study to assess the extent of pollinator limitation in seven crops at 131...

Data from: Evolutionary patterns in the geographic range size of Atlantic Forest plants

Tarciso Leão, Eimear Nic Lughadha & Peter Reich
Species’ geographic range size is arguably the single most important predictor of vulnerability to extinction and a key metric in ecology. Despite this, patterns of specific variation in range size and their underlying reasons are still poorly understood. For example, hypotheses on how evolutionary history affects range size have scarcely been tested. To address these questions, we focused on Brazil’s Atlantic Forest flora, one of the most species-rich in the world, relatively well-known and highly...

Development of whole-genome prediction models to increase the rate of genetic gain in intermediate wheatgrass (Thinopyrum intermedium) breeding

Jared Crain, Atena Haghighattalab, Lee DeHaan & Jesse Poland
The development of perennial grain crops is driven by the vision of simultaneous food production and enhanced ecosystem services. Typically, perennial crops like intermediate wheatgrass (IWG, Thinopyrum intermedium) have low seed yield and other detrimental agronomic traits. Next generation sequencing has made genomic selection (GS) a tractable and viable breeding method. To investigate how an IWG breeding program may utilize GS, we evaluated 3,658 plants over two years for 46 traits to build a training...

Data from: Lessons from movement ecology for the return to work: modeling contacts and the spread of COVID-19

Allison Shaw, Lauren White, Matthew Michalska-Smith, Elizabeth Borer, Meggan Craft, Eric Seabloom, Emilie Snell-Rood & Michael Travisano
Human behavior (movement, social contacts) plays a central role in the spread of pathogens like SARS-CoV-2. The rapid spread of SARS-CoV-2 was driven by global human movement, and initial lockdown measures aimed to localize movement and contact in order to slow spread. Thus, movement and contact patterns need to be explicitly considered when making reopening decisions, especially regarding return to work. Here, as a case study, we consider the initial stages of resuming research at...

Disentangling sources of gene tree discordance in phylogenomic datasets: testing ancient hybridizations in Amaranthaceae s.l.

Diego F. Morales-Briones, Gudrun Kadereit, Delphine Tefarikis, Michael Moore, Stephen Smith, Samuel Brockington, Alfonso Timoneda, Won Yim, John Cushman & Ya Yang
Gene tree discordance in large genomic datasets can be caused by evolutionary processes such as incomplete lineage sorting and hybridization, as well as model violation, and errors in data processing, orthology inference, and gene tree estimation. Species tree methods that identify and accommodate all sources of conflict are not available, but a combination of multiple approaches can help tease apart alternative sources of conflict. Here, using a phylotranscriptomic analysis in combination with reference genomes, we...

Nutritional constraints on brain evolution: sodium and nitrogen limit brain size

Emilie Snell-Rood, Eli Matthew Swanson, Anne Espeset, Sarah Jaumann, Kinsey Philips, Courtney Walker, Brandon Semke, Akira Mori, Gerhard Boenisch, Jens Kattge, Eric Seabloom & Elizabeth Borer
Nutrition has been hypothesized as an important constraint on brain evolution. However, it is unclear whether the availability of specific nutrients or the difficulty of locating high quality diets limits brain evolution, especially over long periods of time. We show that dietary nutrient content predicted brain size across 42 species of butterflies. Brain size, relative to body size, was associated with the sodium and nitrogen content of a species’ diet. There was no evidence that...

Artificial night light helps account for observer bias in citizen science monitoring of an expanding large mammal population

Mark Ditmer, Fabiola Iannarilli, Andrew Tri, David Garshelis & Neil Carter
1. The integration of citizen scientists into ecological research is transforming how, where, and when data are collected, and expanding the potential scales of ecological studies. Citizen-science projects can provide numerous benefits for participants, while educating and connecting professionals with lay audiences, potentially increasing acceptance of conservation and management actions. However, for all the benefits, collection of citizen-science data is often biased towards areas that are easily accessible (e.g. developments and roadways), and thus data...

The evolution of sex is tempered by costly hybridization in Boechera (rock cress)

Catherine Rushworth & Tom Mitchell-Olds
Despite decades of research, the evolution of sex remains an enigma in evolutionary biology. Typically, research addresses the costs of sex and asexuality to characterize the circumstances favoring one reproductive mode. Surprisingly few studies address the influence of common traits that are, in many organisms, obligately correlated with asexuality, including hybridization and polyploidy. These traits have substantial impacts on traits under selection. In particular, the fitness consequences of hybridization (that is, reduced fitness due to...

Dominant native and non-native graminoids differ in key leaf traits irrespective of nutrient availability

Arthur Broadbent, Jennifer Firn, James McGree, Elizabeth Borer, Yvonne Buckley, W. Stanley Harpole, Kimberly Komatsu, Andrew MacDougall, Kate Orwin, Nicholas Ostle, Eric Seabloom, Jonathan Bakker, Lori Biedermann, Maria Caldeira, Nico Eisenhauer, Nicole Hagenah, Yann Hautier, Joslin Moore, Carla Nogueira, Pablo Peri, Anita Risch, Christiane Roscher, Martin Schuetz & Carly Stevens
Aim Nutrient enrichment is associated with plant invasions and biodiversity loss. Functional trait advantages may predict the ascendancy of invasive plants following nutrient enrichment but this is rarely tested. Here, we investigate 1) whether dominant native and non-native plants differ in important morphological and physiological leaf traits, 2) how their traits respond to nutrient addition, and 3) whether responses are consistent across functional groups. Location Australia, Europe, North America and South Africa Time period 2007...

Registration Year

  • 2020

Resource Types

  • Dataset


  • University of Minnesota
  • University of Michigan-Ann Arbor
  • Field Museum of Natural History
  • University of Guelph
  • Agricultural Research Service
  • Harvard University
  • University of Washington
  • Stanford University
  • University of Pretoria
  • Utah State University